Chapter 12- Biotechnology and its Application (Part- 1 )
1. Which of the following is not a characteristic of DNA replication?
- Semi-conservative nature
- Bidirectional replication
- Initiation by a primer
- Involvement of RNA polymerase
- 4 Clear All
2. The enzyme responsible for joining Okazaki fragments during DNA replication is:
- DNA helicase
- DNA polymerase III
- DNA ligase
- Primase
- 3 Clear All
3. In DNA replication, the leading strand is synthesized:
- Continuously in the 5' to 3' direction
- Discontinuously in the 5' to 3' direction
- Continuously in the 3' to 5' direction
- Discontinuously in the 3' to 5' direction
- 1 Clear All
4. Telomeres are protective structures found at the ends of:
- DNA molecules
- RNA molecules
- Chromosomes
- Ribosomes
- 3 Clear All
5. The enzyme responsible for synthesizing RNA primer during DNA replication is:
- DNA helicase
- DNA polymerase I
- DNA polymerase III
- Primase
- 4 Clear All
6. Which of the following is not involved in the proofreading of DNA during replication?
- DNA polymerase
- Exonucleases
- Endonucleases
- Mismatch repair enzymes
- 3 Clear All
7. DNA replication occurs during which phase of the cell cycle?
- G1 phase
- S phase
- G2 phase
- M Phase
- 2 Clear All
8. The replication origin in eukaryotes is known as:
- Okazaki fragment
- Telomere
- Centromere
- Replication fork
- 4 Clear All
9. The enzyme responsible for unwinding the DNA helix during replication is:
- DNA helicase
- DNA polymerase I
- DNA polymerase II
- Ligase
- 1 Clear All
10. The enzyme responsible for removing RNA primers and replacing them with DNA during replication is:
- DNA helicase
- DNA polymerase I
- DNA polymerase II
- Ligase
- 2 Clear All